Hello, does anyone know if the d7904v has a factory reset button or switch? My son changed all the passwords including the default admin and never wrote them down! He forgot what they were and never finished programming the unit and I would like to use the record but cannot because it keeps calling for the password! Is there someway to override or reset this somehow or someway??? Any help on this would be so appreciated I have tried everything for two weeks now to no avail.